Condenser.



Witnesses.

APPLICATION FILED AUG. 7, 1905.

R. EVEREST.

CONDENSER.

Patented June 15, 1909.

2 SHEETS-SHEET l.

Inventor. flugustine A. R. EVEREST.

CONDENSER.

APPLIOATION FILED AUG.7, 1905.

Patented June 15, 1909.

2 SHEET SSHEET 2.

' MIVEA/TOFP: ficgustine Fl. Everest By M fltfy- UNITED STATES PATENT OFFICE.

AUGUSTINE R. EVEREST, OF LYNN, MASSACHUSETTS, ASSIGNOR TO GENERAL ELECTRI COMPANY, A CORPORATION OF NEW CONDENSER.

Patented Ju e 15, 1909.

Application filed August 7, 1905. Serial No. 272,985.

T 0 all whom it may concern:

Be it known that I, AUGUSTINE It. EVER- EST, a citizen of the United States, residing at Lynn, county of Essex, State of Massachusetts, have invented certain new and useful Improvements in Condensers, of which the following is a-specification.

y present invention has for its purpose improvements in the construction and arrangement of static electric condensers.

The various features of novelty which characterize my invention are pointed out withparticularity in the claims annexed to and forming a part of this specification. For a better understanding of my invention, however, reference may be had to the accompanying drawings and descriptive matter in which I have illustrated and described one of the forms in whichmy invention may be embodied.

In the drawings, Figure 1 is a perspective view with parts broken away of a high potential, large ca acity condenser embodying my invention; ig. 2 is an elevation partly in section illustrating a feature of construction which may be employed; Fig. 3 is an end elevation; and Fig. 4 a side elevation of one of the units or sections into Which my condenser may be divided.

Referring to the drawings, 1 represents a tank or receptacle in which the condenser is placed. In the form of my invention illustrated in the drawings, the condenser is made up of four substantially similar sections 2. Each of the sections comprises aframe or rack formed of two end members 3 which may be in the form of rectangular plates of wood and are connected together by four parallel bars 4 alsoadvantageously formed of wood. As shown, the bars 4 extend between the outer edges of the end members 3, one bar extending from each side of each end member and being located midway between adjacent corners of the end members. Each bar 4 is provided with a plurality-of inwardly projecting pins or guide members 5 formed of suitable insulating material such as wood which support the active conducting plates 6 of the condenser. Kerfs or slots are formed in the inner ends of the guides or pins 5 into which the edges of the lates 6 of the condenser are received. T e plates 6 may be formed of any suitable material. I have obtained excellent results, however, by making them of pieces of sheet iron. The iron plates supported by the end member 3.

are preferably covered with an enamel or varnish not soluble in oil or other insulating medium employed which serves to prevent oxidation of the plates an d also as an insulating coating.

In the particular embodiment of my invention disclosed the plates are substantially square but have their corners rounded off as is clearly shown in Fig. 4.

As shown, successive ins 5 extending from each bar 4 are of different lengths, alternate pins, however, being of the same length. By this arrangement successive plates 6 are laterally displaced so that the distance between the similar parallel edges of adjacent plates is greater than the distance between the bodies of the plates. This diminishes the liability of break down which, as is well known, is more apt to occur between the edges of the conducting plates than between their bodies. One or more barriers preferably in the'form of lates of insulating material such as press-board similar in shape to the plates 6 but larger, are located between each pair of pins 5. In the form of invention disclosed, the bars 4 are provided with kerfs or slots located one between each adjacent pair ofpins 5 each kerf receiving the edges of a pair of plates 7.

The end members 3 are rovided each with a pair of reinforcing meta strips 8. The upper ends of the strips 8 are formed with eyes 9 in which may engage suitable lifting devices by means of which the condenser sections may be placed in or lifted out of the receptacle 1. Each section of the condenser is provided with a pair of bus bars or conductors 10 and 11 which are located at each side of the top bar 4 and are secured to and Leads 12 extend from the bus-bars '10 to alternate plates 6.. Leads 13 connect the bus-bars 11 to the plates 6 which are not connected to the bus-bar 10. The bars 10 of the different sections which are in alinement with each other are connected by suitable conductors 14. The bars 11 are connected in a similar manner. The top bar 4 of one of the section carries supports 15 of insulating materia. A terminal 16 carried by the suport 15 has its lower end connected to the us-bars 10. A similar support 15' carried by a to bar of, another section of the condenser olds a terminal 16 similarly connected to the bus bars 11.

The terminals YORK. V

16 and 16 thus form the terminals of the condenser. The tank or receptacle 1 in which the condenser sections may be immersed in oil or other suitable insulatin material is provided with a cover 17 formed with apertures. through which the supports 15 and 15 extend.

The construction described is simple and com act and possesses many advantages in mec anical strength and arrangement. The conducting lates are reliably supported and insulated. y interposing in the insulating fluid between adjacent plates barriers in the form ofsolid insulating material, the capacity ofthe condenser to resist breakdown stresses is greatly increased' It has been found that the stren th of the insulation between condenser pIates when composed of fluid insulating material and one or more barriers of solid material separated from each of the plates by thefluid insulating material, is much greater than if the barriers are not employed, and this even though the insulating properties of the material of which the barrier is composed are inferior to the insulating properties of the fluid insulating material displaced by the barriers. In fact if thin barriers of conducting material are employed the resistance to break down stresses may be greater than ifno barriers are used.

In Fig. '2 I have shown a construction in which an insulated plate of conducting material such as sheet iron is placed between the. pair of insulating barriers betvgeen each pair of active plates. Such insulated conducting plates equalize the stresses between adjacent active lates and diminishes the likelihood of brea down.

It will-be obvious that changes may be made in the form of the invention disclosed without departing from its spirit and that certain features of my invention may be employed with beneficial results without employingat the same time other features of the invention What I claim as new, and desire to secure by Letters Patent of the United States, is,

1. In a condenser, a box-like frame compr sing end members and bars connecting sald end members, sup orting pins of insulating material carried by said bars, and

plates of conducting material supported at their edges by said pins.

2. In a condenser, a box-like frame comprising end members and bars connecting said end members, supporting pins carried by said bars, plates of conducting materials supported by said pins, and barriers of insulating material supported between adjacent p 3. A condenser unit comprising a rack or frame, active conducting plates the edges of which are engaged and supported by said frame, one or. more insulating barriers between adjacent pairs of active plates, sald barriers being in the form of plates the edges of which are also engaged and supported by said frame.

4. In a condenser, a frame or rack, plates of conducting material the edges of which engage and are sup orted by said frame, one or more barriers o insulating material in the. form of plates located between adjacent pairs of conducting plates but out of contact therewith, the edges of said barriers engaging and being supported b said frame,an d a receptacle containing a ath of insulating fluid in which said frame and plates are immersed.

5. In a condenser, a frame or rack, plates of conducting material the ed es of which engage and are su ported by sald frame, one or more barriers o insulating material in the form of plates located between adjacent airs of conducting plates, the edges of said barriers engaging and being supported by said frame, and a rece tacle containing a bath of insulating fluid in which said frame and plates are immersed. I

6. In a condenser, a frame or rack, a pair of active conducting lates of op osite polarity, and a third insu ated plate 0 conducting material located between said active plates but out of .contact therewith, the

edges of said lates engaging and being supported by sai rack.

In Witness whereof, I have hereunto set my. hand this fourth day of August, 1905 AUGUSTINE R. EVEREST.

I Witnesses:

Jonu A. MCMANUS,J1., HENRY O. WESTENDARP. 

